Troubleshooting – Great Plains 800 Operator Manual User Manual
Page 38
175-057M
2011-10-25
34
800
Great Plains Manufacturing, Inc.
Troubleshooting
Problem
Solution
Uneven seed spacing or
uneven stand
Check for plugging in seed cup.
Check if seed tubes are plugged.
Reduce ground speed.
Check that opener discs turn freely.
Use a faster Drive Type and close seed-cup doors to narrower position.
Check if opener frame has too little down pressure to penetrate soil. Increase down
pressure on openers if necessary. See “Opener Frame Down-Force” on page 28.
Check if opener frame has too much down pressure, and rows are not running level.
Decrease down pressure if necessary. See “Opener Frame Down-Force” on
page 28.
Check for trash or mud build-up on Seed-Lok
®
wheels. Lock up if necessary.
Seed Firmer Lock-Up” on page 32.
Chain skipping - check for loose idlers and excess slack.
End Wheel slippage - conditions may be too wet for planting.
Opener discs not
turning freely
Check for trash or mud build-up between discs.
Check disc scraper adjustment (standard slotted scraper.)
Check for trash or mud build-up on disc scrapers.
Check disc bearings.
Check opener frame for possible damage.
If opener discs turn freely by hand but not in field, reduce down pressure.
See “Opener Frame Down-Force” on page 28.
Check press-wheel adjustment for seeding depth. See “Opener Depth (Press Wheel
Height)” on page 33.
Actual seeding rate
is different than desired
Check tire pressure. See “Tire Inflation Chart” on page 52.
Check end wheels. Proper size is 700-15 LT.
Check for build-up of seed treatment. Regularly clean off build-up.
Check seed-rate setting. in Seed Rate Manual or “Opener Frame Down-Force” on
page 28.
Consider your seed weight. Seed-rate charts are based on average seed weights.
Excessive seed
cracking
Use slower drive type and open seed-cup doors to a wider position.
Acremeter doesn’t
measure accurately
Meter readings are not precise. Acremeters are factory-programmed for average drill
swath, but not particular row spacings. Also, they include a compensation for nominal
wheel slippage that may vary from your conditions.
Check tire size and pressure. See “Tire Inflation Chart” on page 52.
Check planting operation for excessive overlap or gaps between passes.
Check that your acremeter is for your drill. Verify revolutions per acre when display is
active. See “Acremeter Operation” on page 22.